smaller missiles...,

WaPo | The CIA is using new, smaller missiles and advanced surveillance techniques to minimize civilian casualties in its targeted killings of suspected insurgents in Pakistan's tribal areas, according to current and former officials in the United States and Pakistan.

The technological improvements have resulted in more accurate operations that have provoked relatively little public outrage, the officials said. Pakistan's government has tolerated the airstrikes, which have killed hundreds of suspected insurgents since early 2009, but that support has always been fragile and could quickly evaporate, U.S. and Pakistani officials said.

The CIA declines to publicly discuss its clandestine operations in Pakistan, and a spokesman would not comment on the kinds of weapons the agency is using. But two counterterrorism officials said in interviews that evolving technology and tactics have kept the number of civilian deaths extremely low. The officials, along with other U.S. and Pakistani officials interviewed for this article, spoke on the condition of anonymity because the drone campaign is both classified and controversial.

Last month, a small CIA missile, probably no bigger than a violin case and weighing about 35 pounds, tore through the second floor of a house in Miram Shah, a town in the tribal province of South Waziristan. The projectile exploded, killing a top al-Qaeda official and about nine other suspected terrorists.

The mud-brick house collapsed and the roof of a neighboring house was damaged, but no one else in the town of 5,000 was hurt, according to U.S. officials who have reviewed after-action reports.

Urban strikes
The agency, using 100-pound Hellfire missiles fired from remotely controlled Predator aircraft, once targeted militants largely in rural settings, but lighter weapons and miniature spy drones have made killings in urban areas more feasible, officials said.